Power press for forming mica washers and other insulating forms



Aug; 5 1924. 1,503,829

E. G. HEALD POWER PRESS FOR FORMING MICA WASHERS AND OTHER INSULATING FORMS Filed March 12. 192

awucwtoz 3513M abto r/nag/ 5 PatentedAug. 5,1924. i I. OUNIWE Sp'EES he ELDON G. HEALD, OF WEST BRIGHTON, NEW YORK, ASSIGNOR TO EUGENE MUN- SELL & (10., OF NEW YORK, N. -Y., A CORPORATION 'OF NEW JERSEY.

IPBESSEO B. OTHER INSULATING FOR-MS.

application March 1923. Serial'No. 624,343.

To all whom it may concern: indicated novel features of my invention to- Be it known that I, ELnoN G. 'HEALD, a get-her "with "other "advantageous "features citizen of the United States of America, thereof which will appear hereinafter, refwhose residence and post-office address "is erenc'e mayTbe had to the accompanying 111 Bodine Street, West New! Brighton, drawings'wherein: i 6O 7 Staten Island, New York, have invented Fig. 1 is 'a'side'elevation of a machine emnew and useful Improvements in Power bod'ying'my invention with certain parts in Presses for Forming Mica Washers and section; and Otherlnsulating Fims, of which the fol- Fig. 2isla frontview thereof.

lowing is a specification. H Referring to the'drawings where like num- 65 i This inventionrelates to .a-power press erals designate similarparts throughout, 1 for forming'and stamping'micawashersand have illustrated "my invention as embodied other insulating forms from mica stock, in'andapplied to a power press of the insucli, for example, as raw niaterial termed clinabletype whose main frame or standplinch inica or Washer mica. and consists of an integral casting 1 having a 7 g cording to prior'practice with whichI pairfo'f circular rockers 2 seated in coram familiar, the insulating forms which responding circular seats of a base indicated are made from raw material come from the generally iby' the numeral 3; the standard 1 machines mixed indiscriminately with the carries upon its'upper enda power'drive and scrap material left over'from the stamping control Jmechanism consisting 'of a shaft 7 5 process, with the result that the forms'are '4 and a driving pulley 5, this drive mechaseparated out and segregated at considernism being suitably journ'aled therein. 0n able labor and expense? For example, in thefront side of the standard 1 and beneath making mica insulating washers, the washers the shaft 4 there is mounted a reciprocating 2,5 themselves'and the scrap material are all chuck mechanism'which carries at its lower 89 usually gathered into'a coinmonrecepta cle endasuitable female die forming'and stampand the formed washers are slowly and tedingmemberfi of ring form and having there iou sly separated out eitherb-y hand or by both Within a male die member 6' which in coopscreen ingmachine and hand from the mass eration with the stationary annular die 7 3 ofmaterial contained therein. g carried beneath the die 6, 6, on a platform v The object of myinventi'ongenerally stat- 8 formed in the standard, operates to form ed is "a stamping machine or press which andstamp outtheinsulation forms from automatically separatesout and segregates the insulation blanks of mica and such like the washers from thescrap materi'al during fedithereto." he reciprocating mechanism the tamping and forming operations withincluding the die 6, 6 may be driven in any out necessitating the subsequent screening suitable manner from shaft 4, and preby hand or screening machine.' In the'emferably through a clutch mechanism 9, bodiment illustrated; herein "1 accomplish which automatically throws the reciprocating th'isby incorporating in a standard stampmechanism and shaft out of gear with the 40 mg press a special automatic 'mechanism power pulley 5 after each revolution, a suitcomprising areciprocable chute which', a utoable pedal 10 being provided for throwing inatically and in synchronism withthe relain the clutch and setting in operation the retively reciprocating dies, takes up posiciprocatingdie for one complete downward tio'ns alternately between the dies and away and upward reciprocating movement. All

a Itherefrom so as to catch the washers as they of these, devices justdescribed are indicated are released from the upper die, during the more or less generally and are outlined Withoperation ofthe machine, this reciprocable out showing details thereof since the latter chute being downwardly inclined so i as to mayvary according to the different types of enable the deposit of the'washers in aIs uitmachines in use. a

5 able receptacle. A further object is a simple The die 6 as indicated in section consists and reliable machine for aut0matically .efof a circular lower shearing edge 11 which fecting the simultaneous stamping and sepis adapted to engage the mica blank or aration 0f the insulating forms, as will apblanks positioned upon the stationary die peeirhereinafter. I member 7, the outer edge of the latter serv- 5 For abetter understanding of theabove ing as a male'die in order to stamp out a circular insulating form or forms from the blanks. A yielding ring 15 is disposed around the die member 7 and substantially on a level with the upper end thereof, this ring being carried by suitable compression springs 16 resting in sockets upon the platform 8 there beingdiagraimnatically illustrated. The die on its downward movement engages the ring 15 and presses it down against the tension of the supporting springs 16, and the male die 6 enters the female part of die 7, these parts cooperating with each other as indicated to stamp from a blank insulating forms of the washer type the moving die 6, 6 moving forward to stamp them out and on the backward reciprocating movement withdrawing the form thus made and carrying it upward to the position indicated in Fig. 1, which corresponds to the stationary position or positions of the die at the beginning of its reciprocating movement. In this position a releasing or ejector device 17 engages the formed washer 18 and kicks it loose from the die member 6, 6 thereby permitting it to fall by gravity to the chute 20 provided therefor. This ejector 17 is generally of annular form (for washers) and is disposed between the outer die member 6 and the inner die member 6. It has a limited up and down movement relatively to the die and its movement is transmitted to a knock out pin 12 which engages a bar 13 whose upwardmovement is limited by a set screw 13. In the position indicated in Fig. 1 it projects slightly below the shearing edge of die 6. Ordinarily the insulating forms which have been made and the edges or scrap material of the insulating forms fall into a common container from which the insulating forms are laboriously and tediously separated out and segregated, usually by hand. This machine embodies a chute 20 which in the stationary and separated position of the cooperating dies occupies a position immediately below the die 6, 6, in order to gather and collect the insulating washer forms as they are eject-- ed from the die, this chute 20 being downwardly'and rearwardly inclined to causethe washers which fall therein to slide down by gravity into a suitable receptacle 21. In order to avoid fouling of the reciprocating die when it proceeds downwardly in the stamping operation and to properly dispose this chute down beneath the die 6 to catch the insulating forms thereby formed, I provide a reciprocating or to-and-fro mechanism for moving the chute backwards and forwards in synchronism with the relatively reciprocating movements of the dies. This mechanism generally comprises a carrier 22 to which the chute is securely fastened through the medium of a bracket arm 23, and is pivotedly mounted at any suitable point 24 for to-and-fro movement to positively carry the forward end of the chute 20 alternately beneath the die 6 and to the dotted positions in Fig. 1, synchronously with the operation of the insulation form recipro cating devices. In the particular embodiment herein illustrated the carrier 22 is shown pivoted on astandard 25 as a convenient mounting therefor and the synchronous to-and-fro movements of the carrier is effected through the medium of an eccentric 26 mounted on the end of the shaft 4, and a connecting link 27 'hav ing one end pivotedly attached to the carrier 22 at a convenient point thereof and the other end pivotedly attached to the eccentric 26. The eccentric 26 may be mounted upon the shaft in any suitable manner, but in the embodiment illustrated it is shown as carried by a ring or collar 28 which is fixed to the end of the shaft by means of set screws 29.

In the drawings the full lines indicate the position of the shaft 4 in the stationary position of the reciprocating die 6, 6, or at the beginning of its downward or. reciprocating movements, the forward end of the chute 20 being disposed'beneath the die to catch the formed insulating washers and;

all

returns to initial position, the chute is automatically brought back by the mechanism shown in a position to catch the washer which has been previously formed in the stamping operation. 30 indicates a recep tacle for receiving thecenters of the washers which are stamped out and ejected by the die 6 down through the center of die 7. 31 indicates a receptacle for the waste or scrap insulating material which slides from 1 the platform 8 and the die 7 in a manner to fall therein, the ring 15 in its upward movement carrying the scrap up into a positicn whereit can slide or be ejected there from. The washers are formed and delivered to the receptacle 21 unmixed with the centers and scrap material, the screening, which is necessary when all of these parts are collected intoacomtogether, being thereby eliminated with the consequent economy in production. 7

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is: I

1. In a machine for stamping insulating forms from insulating sheets,'a pair of relatively movable cooperating die. members,

automatically 7 .mon receptacle or indiscriminately mixed one disposed above the other and a reciprocable inclined chute operating in synchronism with the relatively reciprocating die members, said chute having its lower end leading to a depository for receiving the finished forms and adapted to assume positions alternately with its elevated end between the dies when they are separated and outof the path of the moving die when the latter is operated to bring it into engagement with the stationary die.

2. In a machine for stamping insulating forms from insulating sheets, a pair of relatively movable cooperating die members, one disposed above the other and an elongated reciprocable inclined chute operating in synchronism with the relatively reciprocating die members, said chute having its lower end leading to a depository for receiving the finished forms and adapted to assume positions alternately with its elevated end between the dies when they are separated and out of the path of the moving die when the latter is operated to bring it into engagement with the stationary die, together with means for synchronously reciprocating the chute longitudinally of itself.

3. In.a machine for forming insulating forms from sheets of mica, a stationarydie member adapted to receive a sheet from which the forms are to be stamped, a re ciprocating die member disposed above and adapted to cooperate with the stationary die member and stamp the forms and withdraw the same in an upward direction after the forming operation; a suspended pivotally mounted member adapted to oscillate synchronously with the movement of the moving die; an elongated inclined said pivotally mounted member so as to swing in the arcrof a circle and adapted to assume alternate positions with its elevated end underneath the reciprocable die member when the latter is retracted and to one side thereof during the forming operation and means operating in synchronism with the die and the chute for releasing the insulating forms retained by the die.

4. An attachment for standard insulating form stamping machines comprising a reciprocable inclined chute having its lower end leading to a suitable depository for receiving the finished forms and adapted to he operatively connected up with the operative mechanism of the machine to assume positions alternately with its elevated end in the path of the moving die to catch the forms when they are released therefrom and to one side thereof eration.

chute carried by during the stamping op- 5. In a machine for stamping insulating forms from insulating sheets, a stationary die member adapted to receive a sheet from which the forms are to be stamped, a reciprocating die member disposed above and adapted to cooperate with the stationary die member and stamp the forms and withdraw the same in anupward direction after the stamping operation, a power shaft with connecting mechanism for operating the reciprocating die member, a pivotally attached member, an inclined reciprocable chute carriedby said pivotedly attached member, an eccentric on the shaft and a connecting link between the chute carrier and the eccentric for actuating the chute to a position beneath the reciprocable die member when the latter is retracted and to one side thereof during the stamping operation, and means operating in synchronism with the die and the chute for ejecting the insulating forms retained by the die.

6. An attachment for standard insulating form stamping machines of the inclined type comprising a reciprocable chute disposed substantially at right angles to the inclined axis of the machine and having its lower end leading to a suitable depository for receiving the finished forms and being adapted to be operatively connected up with the operative mechanism of the machine to assume positions alternately with its elevated end in the path of the moving die to catch the forms when they are released therefrom and to one side thereof during the stamping operatlon.

7. In a standard insulating form stamping machine of the inclined type, a lower stationary die member and cooperating platform inclined to the vertical, a movable cooperating die disposed above the stationary die and reciprocable on an inclined axis in line with the lower die member, a movable chute member inclined to the horizontal and operating in synchronism with the reciprocating die member, said chute member having its lower end leading to a depository for receiving the finished forms, and adapted to assume positions alternately with its elevated end between the dies when they are separated and out of the path of the moving die when the latter is operated to bring it into engagement with the stationary die, together with means for moving the chute member synchronously with the reciprocating die.

In testimony whereof, I have signed my name to this specification.

ELDON e. HEALD. 

